input-remapping

Use a gamepad as a keyboard and mouse on Linux, driven by Controller Companion's .ccp profiles. Per-program profile switching, pad-driven on-screen keyboard, per-controller calibration, and a GTK GUI for all of it.

Remap mouse/trackball buttons on Linux via udev hwdb — no daemon, works on Wayland and X11. Enables hold-to-scroll on KDE.

Linux Mouse Button Remapper for Wayland and X11

Free Windows controller axis tuner with custom response curves, deadzones, profiles, rumble forwarding, and a virtual Xbox 360 output.

Find out what an input device actually sends, then scaffold a keyd config. Answers the questions keyd can't: which interface, which key name, and whether your rotary encoder can report its button held while turning.